/Engine/Source/Editor/Sequencer/Public/MVVM/Extensions/ICurveEditorTreeItemExtension.h
Called when this view-model's curve editor item is removed
void OnRemovedFromCurveEditor ( [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [FCurveEditor](API\Editor\CurveEditor\FCurveEditor) > CurveEditor )